@krishnan_chockalinga Thanks for your articulation and sharing your PF. I hope that you must be having your investment strategy in place and you have done enough research on each and every stock of your PF. Its very difficult to comment on your individual stock because you alone knows why you bought and when you are planning to get rid of stocks. What financial goals are you trying to achieve?
If I am you and if my time horizon is more than 10 years of holding investment than I would never keep following stocks in my PF: Tata chemicals, Federal Bank, Cochin, Ashok leyland, REC, Tata Investment corp, NBCC, Indian Oil, Karur Vysaya bank. Other companies I dont have any idea.
Some stocks are common in my PF like Infosys, HDFC, Chola, Amrutanjan, Petronet which I think are worth keeping for long term bets in PF. If you wish you can refer my PF for reference.
Happy investing.